Send to

Choose Destination
See comment in PubMed Commons below
Anaesthesia. 2008 Mar;63(3):313-5. doi: 10.1111/j.1365-2044.2007.05348.x.

Tracheal pressures during open suctioning.

Author information

Department of Anaesthesia, Gloucestershire Royal Hospital, Gloucester GL1 3NN, UK.


The purpose of this bench-top study was to determine the subatmospheric tracheal pressures that could be generated by different sizes of suction catheters when placed into the different sizes of tracheal tubes encountered in adult anaesthetic practice. Five sizes of suction catheter were studied from 8 to 16 Fr and five sizes of tracheal tubes from 5 to 9 mm internal diameter. We found that the larger suction catheters generated potentially dangerous levels of subatmospheric pressure. If the size of suction catheter was limited so that the ratio of the outside diameter of the suction catheter to the inside diameter of the tracheal tubes was 0.5 or less, tracheal pressures were not more than 2 mmHg subatmospheric. We were able to recommend sizes of suction catheter to use for each size of tracheal tube.

[Indexed for MEDLINE]
Free full text
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Wiley
    Loading ...
    Support Center